AC & heating repair · Liberty Hill, Texas
AC repair and HVAC service in Liberty Hill, TX
AC quit, heat pump struggling, or a system near the end of its life? In Liberty Hill, 74% of homes heat with electricity[1] and half were built before 2017. Request service from HVAC contractors working here. Liberty Hill, in Williamson County — ZIP 78642, counts 13,317 residents (2025 estimate)[2].
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Liberty Hill HVAC snapshot: the key figures
- Population (2025 est.)
- 13,317[2]+276.6% since 2020
- County
- Williamson[2]
- Land area
- 4.6 sq mi[3]
- Homes heated with electricity
- 74%[1]the 3rd-highest share of the 15 Austin-area suburbs we cover
- Homes heated with utility gas
- 20%[1]plus 3% propane/LP
- Heat & excessive-heat days, williamson zone
- 5[4]2016–2025
- Winter-storm & freeze days, williamson zone
- 23[4]2016–2025; heating demand and freeze-related furnace failures
- Lightning-damage reports within 10 mi
- 3[4]2016–2025; power surges damage HVAC control boards
- Damaging-wind reports within 10 mi
- 12[4]2016–2025; wind-blown debris damages outdoor condenser units
- Homes built before 2000
- 15%[1]of 2,719 housing units
- Median year built
- 2017[1]the newest of the 15 Austin-area suburbs we cover
What the local data means for HVAC in Liberty Hill
Liberty Hill is one of the fastest-growing Austin-metro suburbs tracked here: 13,317 people (2025 estimate), up 276.6% since 2020[2]. On the map that's 4.6 square miles holding 2,874 residents per square mile, the 4th densest of the suburbs here; it sits entirely in Williamson County, with ZIP code 78642[3].
With 82% of homes built in 2010 or later[1], a good share of Liberty Hill's equipment may still be under builder or manufacturer warranty; the 15% built before 2000 is where replacement jobs cluster.
The entire city sits in ZIP code 78642[5].
The closest tracked neighbours are Leander (6.7 mi SE), Cedar Park (11.8 mi SE) and Georgetown (12.3 mi E)[3].
74% of occupied Liberty Hill homes heat with electricity, 20% with utility gas and 3% with propane[1] — the 3rd-highest electric share of the 15 Austin-area suburbs we cover; nearby, Leander (41%), Cedar Park (43%), and Georgetown (49%) heat electrically. Electric heat usually means one outdoor unit doing both jobs.
Williamson County forecast zone, 2016–2025: 5 heat or excessive-heat days (latest Aug 20, 2024) and 23 winter-storm or hard-freeze days[4].
Storm exposure for HVAC hardware: 3 lightning-damage reports within 10 miles; 12 damaging-wind reports within 10 miles in 2016–2025[4]. Most recent: Mar 21, 2022, 1.0 miles from the city center.
15% of Liberty Hill's 2,719 housing units were built before 2000 and 82% since 2010[1] (pre-2000 share nearby: Leander (15%), Cedar Park (34%), and Georgetown (31%)). Check builder-installed equipment for a registered warranty.
Among the 15 suburbs tracked here, Liberty Hill stands out for the newest housing (by median year built) (2017)[1], the highest share of homes built since 2010 (82%)[1], the 2nd-fewest damaging-wind reports nearby (12)[4], and the 3rd-highest electric-heat share (74%)[1].
How air moves through a central system
Return, filter, air handler, supply ducts: a clogged filter slows the whole loop.
Get HVAC help in Liberty Hill
Requests go to AC & heating repair contractors serving the Liberty Hill area — ZIP code 78642.
Before you call: repair or replace? what a good hvac visit covers
The data underneath this Liberty Hill page
| Measure | Liberty Hill | Median of 15 | Difference |
|---|---|---|---|
| Built 2010 or later | 82% | 50% | 32 pts higher |
| Propane / LP heat | 3.5% | 2.2% | 1 pts higher |
| Damaging-wind reports (10 mi) | 12 | 24 | 12 fewer |
| Utility-gas heat | 20% | 37% | 16 pts lower |
| Electric heat | 74% | 60% | 15 pts higher |
| Built before 2000 | 15% | 17% | 2 pts lower |
| Median year built | 2017 | 2010 | 7 years newer |
Sorted by largest difference. Each median is the middle value across the covered Austin-area suburbs, from the same sources.
| City | Heat days | Freeze days | Lightning reports | Damaging-wind reports |
|---|---|---|---|---|
| Liberty Hill | 5 | 23 | 3 | 12 |
| Leander 6.7 mi | 5 | 23 | 6 | 25 |
| Cedar Park 11.8 mi | 5 | 23 | 7 | 45 |
| Georgetown 12.3 mi | 5 | 23 | 1 | 14 |
| Lago Vista 15.4 mi | 8 | 22 | 3 | 22 |
| Round Rock 17.2 mi | 5 | 23 | 4 | 41 |
| Date | Wind | Distance |
|---|---|---|
| Mar 21, 2022 | 64 mph (est.) | 1.0 mi |
| Mar 22, 2021 | 60 mph (est.) | 5.1 mi |
| Apr 9, 2020 | 60 mph (est.) | 0.9 mi |
| Jun 9, 2019 | 60 mph (est.) | 9.0 mi |
| Apr 24, 2019 | 64 mph (est.) | 6.5 mi |
| Apr 24, 2019 | 60 mph (est.) | 5.5 mi |
| Date | Distance |
|---|---|
| Jul 24, 2017 | 9.0 mi |
| Jul 24, 2017 | 9.3 mi |
| Jul 24, 2017 | 9.8 mi |
| Main heating fuel | Homes | Share | Margin of error |
|---|---|---|---|
| Electricity | 1,945 | 74.5% | ±317 |
| Utility gas | 533 | 20.4% | ±294 |
| Bottled or tank gas (propane, butane, etc.) | 91 | 3.5% | ±110 |
| No fuel used | 27 | 1.0% | ±31 |
| Other fuel | 15 | 0.6% | ±20 |
| Built | Units | Share | Margin of error |
|---|---|---|---|
| 2020 or later | 915 | 33.7% | ±368 |
| 2010 to 2019 | 1,302 | 47.9% | ±291 |
| 2000 to 2009 | 107 | 3.9% | ±86 |
| 1990 to 1999 | 131 | 4.8% | ±146 |
| 1980 to 1989 | 89 | 3.3% | ±108 |
| 1970 to 1979 | 28 | 1.0% | ±32 |
| 1960 to 1969 | 22 | 0.8% | ±27 |
| 1950 to 1959 | 0 | 0.0% | ±21 |
| 1940 to 1949 | 4 | 0.1% | ±7 |
| 1939 or earlier | 121 | 4.5% | ±67 |
ACS 2020–2024 estimates; margins of error are the Census Bureau's 90% intervals.
| Measure | Value |
|---|---|
| Housing units | 2,719 |
| Detached single-family | 1,758 (65%) |
| Occupied homes | 2,611 |
| Owner-occupied | 1,586 (61%) |
| Renter-occupied | 1,025 (39%) |
| Median home value | $403,200 |
ACS 2020–2024 estimates.
| ZIP (ZCTA) | Share of Liberty Hill's land | Share of the ZIP inside the city |
|---|---|---|
| 78642 | 92% | 4% |
Dated heat and freeze records for the WILLIAMSON forecast zone: see the county list.
Common Liberty Hill HVAC questions
Are heat pumps common in Liberty Hill?
74% of Liberty Hill homes heat with electricity[1], which means a heat pump or electric resistance heat.
How old are Liberty Hill's homes — and their HVAC systems?
The median home dates to 2017, and 82% were built in 2010 or later[1]. Your own system may have been replaced since — the outdoor unit's data plate shows when it was made.
Which Liberty Hill ZIP codes are covered?
78642[5], Williamson County. Nearby pages: Leander (6.7 mi), Cedar Park (11.8 mi), and Georgetown (12.3 mi)[3].
My Liberty Hill home is fairly new — could the HVAC equipment still be under warranty?
Possibly: 82% of Liberty Hill's housing units were built in 2010 or later[1], the highest share of the 15 Austin-area suburbs we cover. Check your closing paperwork for warranties before paying for a repair.
I rent in Liberty Hill. Who arranges the repair?
39% of occupied Liberty Hill homes are rented[1], the 5th-highest share of the 15 Austin-area suburbs we cover. Tell your landlord or property manager in writing first; your lease says who arranges repairs.
Sources
- Census ACS 2020–2024 5-year (keyless bulk)
- Census population estimates, Vintage 2025
- Census Gazetteer 2025
- NOAA Storm Events Database
- Census 2020 ZCTA–place file
Data pulled Sep 28, 2026. Full citations and method.